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International journal of systematic and evolutionary microbiology

Epilithonimonas xixisoli sp. nov., isolated from wetland bank-side soil.


PMID 25256707

Abstract

A novel Gram-staining-negative, non-motile and rod-shaped bacterial strain containing flexirubin-type pigments, designated S31(T), was isolated from bank-side soil of the Xixi wetland in Zhejiang province, China. Growth occurred at 10-37 °C (optimum, 32 °C), pH 6-8 (optimum, pH 7) and with 0-2 % (w/v) NaCl (optimum, 1 %). Strain S31(T) shared highest 16S rRNA gene sequence similarities with Epilithonimonas lactis H1(T) (96.2 %) and Chryseobacterium molle DW3(T) (96.4 %). Phylogenetic analysis suggested that strain S31(T) was a member of the genus Epilithonimonas. The dominant respiratory quinone was MK-6 and the DNA G+C content was 33.3 mol%. The major fatty acids were iso-C15 : 0, summed feature 3 (iso-C15 : 0 2-OH and/or C16 : 1ω7c) and anteiso-C15 : 0. The major polar lipids of strain S31(T) were phosphatidylethanolamine, three unidentified aminolipids and four unidentified polar lipids. Based on its phenotypic and chemotaxonomic characteristics and phylogenetic data, strain S31(T) represents a novel species of the genus Epilithonimonas, for which the name Epilithonimonas xixisoli sp. nov. (type strain S31(T) = CGMCC 1.12802(T) = NBRC 110387(T)) is proposed.